Revised Summary of Drugs for Bipolar Disorder for Dental Practice
This summary outlines the pharmacological agents used to treat bipolar disorder, with a specific focus on lithium and its key implications for dental practice, based on the provided lecture notes.
Pharmacological Treatment
The management of bipolar disorder involves several classes of medication:
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Antipsychotics
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Antiepileptics (e.g., carbamazepine, lamotrigine, valproate)
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Lithium (Lithicarb, Quilonum SR)
This summary will focus on lithium, as it is the primary drug detailed in this specific section of the document.
Lithium
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Mechanism of Action: The exact mechanism of lithium is unknown, but it is thought to potentially inhibit dopamine release and enhance serotonin release.
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Adverse Drug Reactions (ADRs) Caused by Lithium: Lithium is associated with common side effects including a metallic taste, fatigue, headache, vertigo, tremor, acne, and psoriasis.
Dental Implications and Management of Lithium Therapy
Critical Drug Interactions with Lithium
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NSAIDs: A major interaction of concern is between lithium and non-steroidal anti-inflammatory drugs (NSAIDs). Prescribing NSAIDs must be done with extreme caution as they can reduce the renal excretion of lithium, leading to increased levels and a risk of lithium toxicity. Low-dose aspirin is generally considered safe.
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Tramadol: When prescribing for patients on lithium, caution is advised with tramadol due to the risk of serotonin toxicity.
Management of Lithium-Induced Adverse Effects
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Metallic Taste: The metallic taste caused by lithium is a common side effect that can alter the patient’s taste perception.
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Tremor and Fatigue: Tremor and fatigue, which are side effects of lithium, can make it difficult for the patient to maintain fine motor control for oral hygiene and may affect their ability to cooperate during long procedures.
Patient Communication and Care
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It is important to assess patients taking lithium for sedation, mental alertness, and their ability to provide informed consent.
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Scheduling shorter or more frequent appointments may be necessary to accommodate for side effects like fatigue.